4. Gently wipe the density sensor window with a clean dry cloth or cotton swab.
Look
Do not allow anything hard to come in contact with the density sensor window. Do not use excessive force to clean the window.
5. Replace the transfer roll cartridge. Grip the orange
6. Insert the pins at both ends of the transfer roll cartridge into the bearings inside the printer.
7. To lock the transfer roll cartridge into the printer, push down on the tabs until you hear a click.